From Wikipedia encyclopedia: A number is an abstract idea used in counting and measuring. A symbol which represents a number is called a numeral, but in common usage the word number is used for both the idea and the symbol.

The definition of number has been extended over the years to include such numbers as zero, negative numbers, rational numbers, irrational numbers, and complex numbers.

How high do numbers go? In our everyday life we use a lot of the lower numbers, like one to ten, and on up to the trillions. We seldom go higher than that. What about those numbers beyond trillions? Many of them we may not even know.

Let me give you an idea of what numbers are out there. We will start with zero, one, two, three, four, five, six, seven, eight, and nine. All other numbers are just combinations of these, we take one and add zero to make ten, and so on. Take a look at all the numbers that people have come up with:

When people start dealing with numbers this high, they kind of go wild. Someone decided that a googol is a 1 and 100 zeros, and a googolplex is a 1 followed by a googol of zeros, which is an extremely long number. I wonder if anyone really knows what they are doing when they are dealing with numbers this high.

In some foreign countries they have a different list of numbers. So, since we really don’t have to deal with these high numbers, we don’t need to worry about it, but they can be fun.

Here are a couple of interesting things about numbers: 18 is the only number that is twice the sum of it’s digits: 1+8=9 9x2=18.

Multiply 111,111,111 times 111,111,111 It equals 12345678987654321. Try it on your calculator on your computer. Small calculators don’t have enough number spaces.

Here are a couple more interesting things:
God speaking to Moses: “And worlds without number have I created……..and innumerable are they unto man; but all things are numbered unto me, for they are mine and I know them.” Moses 1:33 & 35, "The Pearl of Great Price".

In the scriptures it is mentioned: “numerous as the sands upon the sea shore”. It would be impossible to count that many grains of sand! There are many more interesting things that can be done with numbers. Check them out, and have fun!